/Engine/Source/Runtime/SlateCore/Public/Types/Attributes/SlateAttributeDefinition.inl
void ProtectedInvalidateWidget ( [SWidget](API\Runtime\SlateCore\Widgets\SWidget) & Widget, [ESlateAttributeType](API\Runtime\SlateCore\Types\Attributes\SlateAttributePrivate__ESlateAtt-) AttributeType, EInvalidateWidgetReason InvalidationReason ) const